{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208551",
    "entityType": "User",
    "nonce": "0x312294422d2b1529830d1af465bbf475d0cb68b1aa03043cd696c51eb7027bc5",
    "signature": "0x17118ce8a94dec7d494563216af019897dcd7f498654be2195520daaf944031e2a75e3b9f44b60809b332cacd99b487ecd880b12e81db33cfe27e87e8b55b88d1c",
    "signer": "0x5e16eE72f4c7af2A50C7DA188d65e074e69D78B9",
    "userId": "898051107"
  }
}